A particle oscillates along the $$ x $$-axis according to the law, $$ x(t)=x_0 \sin ^{2}\left(\frac{t}{2}\right) $$ where $$ x_0 = 1 m $$. The kinetic energy $$ (K) $$of the particle as a function of $$ x $$ is correctly represented by the graph

A

B

C

D